Indlela yokuhlangabezana nezidingo zokwakha ikhebula?

Izidingo zokwakha ikhebula

Ngaphambi kokubeka ikhebula, hlola ukuthi ikhebula linokulimala komshini nokuthi ireli yekhebula iphelele yini.Emakhebulini angu-3kV nangaphezulu, kufanele kwenziwe ukuhlolwa kwe-voltage ukumelana.Kumakhebuli angaphansi kuka-1kV, i-megohmmeter engu-1kVingasetshenziswa ukukala ukumelana ne-insulation.Inani lokumelana ne-insulation ngokuvamile alikho ngaphansi kuka-10MΩ.

Ngaphambi kokuqala umsebenzi wokumba umsele wekhebula, amapayipi angaphansi komhlaba, izinga lenhlabathi kanye nesimo sendawo yokwakha kufanele kuqondwe ngokucacile.Lapho kumbiwa imisele ezindaweni ezinamapayipi angaphansi komhlaba, kufanele kuthathwe izinyathelo zokuvimbela ukulimala kwamapayipi.Lapho kumbiwa imisele eduze kwezigxobo noma izakhiwo, kufanele kuthathwe izinyathelo zokuvimbela ukudilika.

Isilinganiso serediyasi yokugoqa ikhebula kububanzi obungaphandle bekhebula akufanele sibe ngaphansi kwamanani ashiwo alandelayo:

Ezintamboni zamandla ama-multi-core afakwe ephepheni, umgodla wokuhola uphindwe izikhathi ezingu-15 kanti umgodla we-aluminium izikhathi ezingu-25.

Ezintamboni zamandla eziwumgogodla owodwa ofakwe ephepheni, igobolondo lomthofu kanye neshethi ye-aluminium kokubili izikhathi ezingama-25.

Ezintamboni zokulawula ezifakwe ephepheni, i-lead sheath izikhathi ezingu-10 kanti i-aluminium sheath izikhathi ezingu-15.

Kuzintambo zenjoloba noma zepulasitiki ezihlotshiswe ngezintambo eziningi eziwumgogodla noma eziwumgogodla owodwa, ikhebula le-armored liyizikhathi eziyi-10, kanti ikhebula elingahlomile liyizikhathi eziyisi-6.

Engxenyeni eqondile yomugqa wekhebula ongcwatshwe ngokuqondile, uma singekho isakhiwo esihlala njalo, izigxobo zomaka kufanele zingcwatshwe, futhi izigxobo zomaka nazo kufanele zingcwatshwe emajoyini nasemakhoneni.

Lapho ikhebula lamandla elifakwe uwoyela elingu-10kV lakhiwe ngaphansi kwesimo sezinga lokushisa elingaphansi kuka-0.℃, indlela yokushisa kufanele isetshenziselwe ukwandisa izinga lokushisa le-ambient noma ukushisa ikhebula ngokudlula okwamanje.Lapho ufudumeza ngokudlula kwamanje, inani lamanje akufanele lidlule inani lamanje elilinganiselwe elivunyelwe ikhebula, futhi izinga lokushisa elingaphezulu lekhebula akufanele lidlule ku-35.℃.

Uma ubude bentambo yekhebula bungadluli ubude bokukhiqiza bomkhiqizi, yonke ikhebula kufanele isetshenziswe futhi amalunga kufanele agwenywe kakhulu ngangokunokwenzeka.Uma amalunga edingeka, kufanele abekwe emgodini noma emgodini womsele wekhebula noma umhubhe wekhebula, futhi amakwe kahle.

Amakhebuli agqitshwe ngokuqondile ngaphansi komhlaba kufanele avikelwe ngesendlalelo sezikhali kanye ne-anti-corrosion layer.

Kumakhebuli agqitshwe ngokuqondile ngaphansi komhlaba, iphansi lomsele kufanele libe isicaba futhi lihlanganiswe ngaphambi kokungcwaba.Indawo ezungeze izintambo kufanele igcwaliswe ngenhlabathi ewugqinsi engu-100mm noma ilahle.Isendlalelo senhlabathi kufanele simbozwe ngepuleti lekhava lekhonkrithi elingaguquki, futhi amalunga aphakathi kufanele avikelwe ngejazi likakhonkolo.Amakhebula akufanele angcwatshwe ezingqimbeni zenhlabathi nodoti.

Ukujula kwamakhebuli agqitshwe ngqo angu-10kV nangaphansi ngokuvamile angabi ngaphansi kuka-0.7m, futhi angabi ngaphansi kwe-1m endaweni yokulima.

Amakhebula abekwe emiseleni yekhebula kanye namahubhe kufanele amakwe ngezimpawu ekugcineni okuholela ngaphandle, amatheminali, amajoyinti aphakathi nendawo kanye nezindawo lapho ukuqondisa kushintsha khona, okubonisa imininingwane yekhebula, amamodeli, amasekhethi kanye nokusetshenziswa kokulungisa.Uma ikhebula lingena emseleni wasendlini noma epayipini, ungqimba oluvimbela ukugqwala kufanele lususwe (ngaphandle kokuvikela ipayipi) futhi kufanele kufakwe upende ovimbela ukugqwala.

Uma izintambo zibekwe kumabhulokhi amapayipi kakhonkolo, imigodi kufanele imiswe.Ibanga phakathi kwemigodi akufanele libe ngaphezu kwama-50m.

Imigodi kufanele ifakwe emhubheni wekhebula lapho kukhona ukugoba, amagatsha, imithombo yamanzi, nezindawo ezinomehluko omkhulu ngobude bendawo.Ibanga phakathi kwemigodi ezindaweni eziqondile akufanele lidlule i-150m.

Ngaphezu kwamabhokisi okuvikela ukhonkolo aqinisiwe, amapayipi kakhonkolo noma amapayipi epulasitiki aqinile angasetshenziswa njengamajoyinti ekhebula aphakathi nendawo.

Lapho ubude bekhebula elidlula epayipini lokuvikela bungaphansi kwama-30m, ububanzi bangaphakathi beshubhu yokuvikela yesigaba esiqondile kufanele bungabi ngaphansi kwezikhathi eziyi-1.5 ububanzi obungaphandle bekhebula, kungabi ngaphansi kwezikhathi ezi-2.0 lapho kukhona ukugoba okukodwa, futhi izikhathi ezingekho ngaphansi kuka-2.5 lapho kukhona ukugoba okubili.Lapho ubude bekhebula elidlula ithubhu lokuvikela bungaphezu kwama-30m (kukhawulelwe ezingxenyeni eziqondile), ububanzi bangaphakathi bethubhu yokuvikela akufanele bube ngaphansi kwezikhathi ezingu-2.5 ububanzi obungaphandle bekhebula.

Ukuxhumeka kwezintambo eziyinhloko zekhebula kufanele kwenziwe ngokuxhuma komkhono oyindilinga.Izinhlamvu zethusi kufanele ziboshwe noma zishiswe ngemikhono yethusi, futhi izinongo ze-aluminium kufanele ziboshwe ngemikhono ye-aluminium.Amashubhu okuxhuma i-Copper-aluminium transition kufanele asetshenziselwe ukuxhuma izintambo zethusi ne-aluminium.

Zonke izintambo eziwumgogodla we-aluminium zicijile, futhi ifilimu ye-oxide kufanele isuswe ngaphambi kokuba i-crimping.Isakhiwo sonke somkhono ngemuva kokugoba akufanele sigogeke noma sigotshwe.

Zonke izintambo ezigqitshwe ngaphansi komhlaba kufanele zihlolwe ukuthi azikho yini izinto ezifihliwe ngaphambi kokugcwalisa emuva, futhi umdwebo oqediwe kufanele udwetshwe ukukhombisa izixhumanisi ezithile, indawo kanye nendlela.

Ukushiselwa kwezinsimbi ezingezona ezoni kanye nezigxivizo zensimbi (okuvame ukwaziwa ngokuthi ukuvala uphawu komthofu) kufanele kuqine.

Ngokubeka ikhebula langaphandle, lapho udlula emgodini wesandla sekhebula noma emgodini, ikhebula ngalinye kufanele limakwe ngophawu lwepulasitiki, futhi injongo, indlela, ukucaciswa kwekhebula kanye nosuku lokubeka ikhebula kufanele kumakwe ngopende.

Kumaphrojekthi okubeka ikhebula angaphandle afihliwe, umdwebo wokuphothula kufanele udluliselwe kuyunithi yokusebenza ukuze kugcinwe izinjongo zokuphatha lapho iphrojekthi isiqediwe futhi ilethwa ukuze yamukelwe.